Dudita et al.
have experimentally analyzed the influence of solvents on the properties of solar selective coatings,
obtained with spray pyrolysis.
From experimental results,
values of solar absorbance are high (92%) and thermal emittance is 3%,
with a concentration of 40% of solvent,
due to physical processes as internal absorption of incident photons and multiple reflections
that occur when thin films are deposited.